服务器环境
容器 操作系统 IP地址 主要软件
nginx CentOS 7 172.20.0.10 Docker-Nginx
mysql CentOS 7 172.20.0.20 Docker-Mysql
php CentOS 7 172.20.0.30 Docker-php
任务需求
使用 Docker 构建 LNMP 环境并运行 Wordpress 网站平台
限制 Nginx 容器最多使用 500MB 的内存和 1G 的 Swap
限制 Mysql 容器写 /dev/sda 的速率为 10 MB/s
将所有容器进行快照，然后将 Docker 镜像打包成 tar 包备份到本地
服务搭建
Nginx
- 建立工作目录
root@docker \~\]# mkdir /opt/nginx
\[root@docker \~\]# cd /opt/nginx
\[root@docker nginx\]# rz -E
rz waiting to receive.
#上传 nginx 安装包 nginx-1.12.0.tar.gz
\[root@docker nginx\]# rz -E
rz waiting to receive.
#上传 wordpress 服务包 wordpress-4.9.4-zh_CN.tar.gz
2. 编写 Dockerfile 脚本
\[root@docker nginx\]# vim Dockerfile
FROM centos:7
MAINTAINER this is nginx image \
CMD [ "/usr/local/nginx/sbin/nginx","-g","daemon off;" ]
- 准备 nginx.conf 配置文件
root@docker nginx\]# ls
Dockerfile nginx-1.12.0.tar.gz nginx.conf wordpress-4.9.4-zh_CN.tar.gz
\[root@docker nginx\]# egrep -v "\^(.)\*#(.)\*$" nginx.conf \| grep -v "\^$"
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
charset utf-8;
location / {
root html;
index index.html index.php;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location \~ \\.php$ {
root html;
fastcgi_pass 172.20.0.30:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/local/nginx/html$fastcgi_script_name;
include fastcgi_params;
}
}
}
4. 生成镜像
\[root@docker nginx\]# docker build -t nginx:lnmp .
\[root@docker nginx\]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx lnmp 35a6404fcfa1 5 seconds ago 522MB
centos 7 eeb6ee3f44bd 4 weeks ago 204MB
5. 创建自定义网络
\[root@docker nginx\]# docker network create --subnet=172.20.0.0/16 --opt "com.docker.network.bridge.name"="docker1" mynetwork
cdc7b80633abf6c1f573528234f024f6088340475acae277d9710f0d2d5dc400
\[root@docker nginx\]# docker network ls
\[root@benet23 nginx\]# ifconfig docker1
docker1: flags=4099\
CMD ["/usr/sbin/init"]
- 准备 my.cnf 文件
root@docker mysql\]# vim my.cnf \[client
port = 3306
socket=/usr/local/mysql/mysql.sock
mysqld
user = mysql
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
character-set-server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket=/usr/local/mysql/mysql.sock
bind-address = 0.0.0.0
skip-name-resolve
max_connections=2048
default-storage-engine=INNODB
max_allowed_packet=16M
server-id = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES
- 生成镜像
root@docker mysql\]# docker build -t mysql:lnmp .
\[root@docker mysql\]# docker images
5. 启动镜像容器
\[root@benet23 mysql\]# docker run --name=mysql -d --privileged --device-write-bps /dev/sda:10M **-v /sys/fs/cgroup:/sys/fs/cgroup** --net mynetwork --ip 172.20.0.20 mysql:lnmp
\[root@benet23 mysql\]# docker ps -a
6. 验证 mysql
\[root@benet23 mysql\]# docker exec -it mysql bash
\[root@e75631cda20b bin\]# systemctl status mysqld
### Php
1. 建立工作目录
\[root@benet23 mysql\]# mkdir ../php
\[root@benet23 mysql\]# cd ../php/
\[root@benet23 php\]# rz -E
rz waiting to receive.
#传入php安装包php-7.1.10.tar.bz2
2. 编写 Dockerfile 脚本
\[root@benet23 php\]# vim Dockerfile
FROM centos:7
MAINTAINER this is php image \
engine = On
short_open_tag = Off
precision = 14
output_buffering = 4096
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = -1
disable_functions =
disable_classes =
zend.enable_gc = On
expose_php = On
max_execution_time = 30
max_input_time = 60
memory_limit = 128M
error_reporting = E_ALL
display_errors = On
display_startup_errors = On
log_errors = On
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
track_errors = On
html_errors = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 8M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 2M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
CLI Server
cli_server.color = On
Date
date.timezone = Asia/Shanghai
filter
iconv
intl
sqlite3
Pcre
Pdo
Pdo_mysql
pdo_mysql.cache_size = 2000
pdo_mysql.default_socket=
Phar
mail function
SMTP = localhost
smtp_port = 25
mail.add_x_header = On
SQL
sql.safe_mode = Off
ODBC
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
Interbase
ibase.allow_persistent = 1
ibase.max_persistent = -1
ibase.max_links = -1
ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
ibase.dateformat = "%Y-%m-%d"
ibase.timeformat = "%H:%M:%S"
MySQLi
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.cache_size = 2000
mysqli.default_port = 3306
mysqli.default_socket = /usr/local/mysql/mysql.sock
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
mysqlnd
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = On
OCI8
PostgreSQL
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
bcmath
bcmath.scale = 0
browscap
Session
session.save_handler = files
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
session.sid_bits_per_character = 5
Assertion
zend.assertions = 1
COM
mbstring
gd
exif
Tidy
tidy.clean_output = Off
soap
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
sysvshm
ldap
ldap.max_links = -1
mcrypt
dba
opcache
curl
openssl
3.2 php-fpm.conf
该配置文件位于 /usr/local/php/etc/php-fpm.conf.default
root@docker php\]# vim php-fpm.conf #17行，删除注释符号";" pid = run/php-fpm.pid \[root@docker php\]# egrep -v "\^;" php-fpm.conf \| egrep -v "\^$" \[global
pid = run/php-fpm.pid
include=/usr/local/php/etc/php-fpm.d/*.conf
3.3 www.conf
该配置文件位于 usr/local/php/etc/php-fpm.d/www.conf.default
root@docker php\]# vim www.conf #23、24行，修改用户和组 user = nginx group = nginx #36行，修改监听IP和端口为容器IP:9000端口 listen = 172.20.0.30:9000 \[root@docker php\]# egrep -v "\^;" www.conf \| egrep -v "\^$" \[www
user = nginx
group = nginx
listen = 172.20.0.30:9000
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
- 生成镜像
root@benet23 php\]# docker build -t php:lnmp . \[root@benet23 php\]# docker images  5. 启动镜像容器 \[root@benet23 php\]# docker run -itd --name php --net mynetwork --ip 172.20.0.30 -p 9000:9000 --volumes-from nginx --volumes-from mysql php:lnmp 38c3d71f3e4afcf060cb471ecd9c409d7f236b651bec752139cd5fd32916ee77 \[root@benet23 php\]# docker ps  6. 验证 php \[root@benet23 php\]# docker exec -it php bash \[root@03e251af5164 php-7.1.10\]# ps -aux  ### 启动 wordpress 服务 1. mysql 授权 进入 mysql 容器 \[root@e75631cda20b bin\]# mysql -u root -p Enter password: #初始密码为空 mysql\> create database wordpress; Query OK, 1 row affected (0.00 sec) mysql\> grant all privileges on wordpress.\* to 'wordpress'@'%' identified by '123456'; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql\> grant all privileges on \*.\* to 'root'@'%' identified by '123456'; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql\> flush privileges; Query OK, 0 rows affected (0.00 sec) 2. 浏览器访问测试 访问 http://192.168.90.10/wordpress/index.php 